Bridle of Rapid Action
This fine leather bridle lets you and your mount react more quickly to danger.
Mount 1,000 gp
Power Encounter (No Action)
Use this power at the beginning of an encounter before you roll initiative. The mount you are riding rolls an initiative check using your initiative modifier. If its check is higher than your check, you can use the mount's result in place of your own.
Published in Adventurer's Vault, page(s) 123.